RELATED: 8 Symptoms of a Bad Catalytic Converter 4. If the spark plugs, wires or oxygen sensor require replacement, you should do it right away, or you could end up with this costly repair.Ĭatalytic converter replacements cost $1,000 or more in most situations. Typically, the catalytic converter fails because you haven’t performed regular maintenance or you ignored other issues. RELATED: 5 Symptoms of a Bad Oxygen Sensor (O2) 3. Many vehicles contain four oxygen sensors, and any of these can fail.ĭepending on the make and model of your vehicle, the oxygen sensor replacement cost could be around $250. When an oxygen sensor begins to fail, you might also notice a decline in the fuel economy. You can either secure the gas cap or replace a damaged one for just a few dollars. Thankfully, this is one of the easiest fixes. When you don’t apply the gas cap tightly enough or it is damaged, the pressure could be off in the fuel system. The car’s gas cap seals the fuel system, so the tank receives the right amount of pressure. Remember that a lot more things can cause the light to come on! Check further down how to diagnose it properly! 1. Here are the five most common reasons this indicator turns on.

Basically, the check engine light can be caused by any issue with your engine.īecause the Check Engine Light is responsible for alerting you to any trouble, it can indicate small issues to major repairs. It can also be due to issues with the ignition like bad spark plugs or ignition coils. The most common cause of a check engine light is an issue with the emission control system like a bad oxygen sensor or MAF sensor. This important indicator has a wrench-like shape and says, “Service Now” or “Service Soon.” This light only serves a reminder to get your scheduled maintenance performed and doesn’t indicate an issue. Some people confuse the Check Engine Light with the service light. At this point, you should pull over and have the car towed. However, the Check Engine Light that flashes off and on is indicating a critical fault. These problems aren’t generally immediate concerns, but you should get right to the mechanic. The Check Engine Light can shine steadily, which indicates there’s an issue that must be checked out.

It can be orange, amber, or yellow light, depending on the car manufacturer. The Check Engine Light illuminates when the car’s computer recognizes a problem. This system provides a list of diagnostic trouble codes that can be read through a universal connector. In 1996, automakers began standardizing all systems with the OBD-II protocol.

Mostly it’s due to something wrong with the emissions control system. It can be due to a faulty engine sensor or any other damaged part in your engine. The Check Engine Light indicates there is something wrong with your engine’s electrical system. Erase the Code Check Engine Light Meaning

What causes check engine light to flash